There's actually a running thread in the reloading forum about this same thing.
I don't roll my own shells but I do shoot a Parker 10 gauge at geese and ducks on a pretty regular basis.
Here's John Davis and I after a 10 gauge hammergun goose hunt on the Eastern Shore this past January:
I was using the 1 1/4 ounce RST Niceshot loads and they were pure poison. The new 1 3/8 ounce ones are even better!